Tax Manager - Finance

At Gamma we provide voice, data, and mobile solutions to businesses across the UK, Germany, Spain, and the Benelux region.

Our people are at the heart of everything we do. When you join us, you'll be part of a collaborative, forward-thinking team that's transforming how businesses connect and communicate globally.

We're growing fast, but we never lose sight of what matters: our people. Whether you're looking to develop your skills, take on new challenges, or make a meaningful impact, Gamma is the place to do it.

We are seeking a highly capable and commercially minded Tax Manager to join a FTSE 250 Tax Group, reporting to the Group Head of Tax.

This role will take ownership of UK corporate tax compliance, review VAT returns, and manage group tax reporting, while supporting the wider tax strategy and partnering with finance and operational teams.

The role will also assist with the implementation of country-by-country, transfer pricing documentation, and Pillar 2 returns.

• Own UK corporate tax compliance, ensuring accurate and timely filings with advisor oversight
• Manage quarterly tax payments and support forecasting for budgeting cycles
• Support tax reporting (half-year and year-end) under IFRS, maintaining robust controls and documentation
• Review VAT returns and provide clear guidance to the business
• Advise stakeholders on a broad range of UK tax matters, including projects and restructures
• Lead the R&D tax credit process, partnering with advisors and internal teams
• Manage and optimise the Group’s Patent Box position
• Support tax governance in line with SAO and CCO requirements
• Identify and mitigate tax risks across the UK business
• Build strong HMRC relationships and support a low-risk rating outcome
• Drive continuous improvement in tax processes and controls
• Support implementation of Country-by-Country Reporting and Pillar 2

• CTA/ATT/ACCA/ACA qualification
• Strong UK corporate tax compliance and reporting experience.
• Experience with R&D Tax Credits and Patent Box preferred.
• Good working knowledge of UK VAT preferred.
• Experience managing external advisors and working in a large or complex organisation.
• Previous experience as a Tax Accountant in a UK business with an international presence.
• Experience with D365 or One Stream preferred.

• 25 days annual leave + birthday
• Subsidised private medical insurance
• 5.1% matched pension contributions
• Enhanced parental leave
• Life assurance and Income protection
• Share save and incentive plans
• Electric Vehicle and Cycle scheme
• Employee discount
• Volunteer day

We require all candidates to be eligible to work in the UK and pass a basic DBS check.

If you don't meet every requirement but feel you could thrive in this role, we would still encourage you to apply.

Gamma is an equal-opportunity employer committed to building diverse, inclusive teams where everyone feels valued and can be their authentic selves. We welcome applicants from all backgrounds, especially those underrepresented in our industry. As a family-friendly employer, we foster a culture of trust, autonomy, and flexibility to support your work-life balance and help you thrive at Gamma.